CA2620200A1 - Signal recognition method using a low-cost microcontroller - Google Patents

Signal recognition method using a low-cost microcontroller Download PDF

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Publication number
CA2620200A1
CA2620200A1 CA002620200A CA2620200A CA2620200A1 CA 2620200 A1 CA2620200 A1 CA 2620200A1 CA 002620200 A CA002620200 A CA 002620200A CA 2620200 A CA2620200 A CA 2620200A CA 2620200 A1 CA2620200 A1 CA 2620200A1
Authority
CA
Canada
Prior art keywords
low
signal
recognition method
cost microcontroller
signal recognition
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
CA002620200A
Other languages
French (fr)
Inventor
Juan Pedro Barrera Vazquez
Luis Gonzaga Meca Castany
Gabriel Pons Fullana
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Biloop Tecnologic SL
Original Assignee
Biloop Tecnologic, S.L.
Juan Pedro Barrera Vazquez
Luis Gonzaga Meca Castany
Gabriel Pons Fullana
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Biloop Tecnologic, S.L., Juan Pedro Barrera Vazquez, Luis Gonzaga Meca Castany, Gabriel Pons Fullana filed Critical Biloop Tecnologic, S.L.
Publication of CA2620200A1 publication Critical patent/CA2620200A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L15/00—Speech recognition
    • G10L15/28—Constructional details of speech recognition systems
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L17/00—Speaker identification or verification techniques
    • G10L17/26—Recognition of special voice characteristics, e.g. for use in lie detectors; Recognition of animal voices
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L15/00—Speech recognition
    • G10L15/02—Feature extraction for speech recognition; Selection of recognition unit

Landscapes

  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Computational Linguistics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Feedback Control In General (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Lock And Its Accessories (AREA)

Abstract

The invention relates to a signal recognition method which is suitable for time-limited, periodic signals. The inventive method consists in obtaining the envelope and taking samples of the instantaneous value of the amplitude thereof. According to the invention, different time parameters are used and a comparison is made with different reference matrices in order to identify members of one of said matrices with the use of a low-cost microcontroller, since the processing capacity required is that necessary to perform basic calculating operations which are integrated into the simplest microcontrollers.

Claims (7)

1.- A signal recognition method with a low-cost microcontroller, comprising obtaining the envelope (13), taking samples of the instantaneous value of its amplitude (14), characterized in that by means of several time parameters and their comparison with different reference matrixes (15) it is possible to identify their belonging to one of said matrixes by means of the use of a low-cost microcontroller.
2.- A signal recognition method with a low-cost microcontroller according to claim 1, characterized in that the parameters of the signal which are compared comprise the mean value, the root mean square value, the work cycle, the first derivative, the second derivative, the maximum value and the minimum value of the signal itself.
3.- A signal recognition method with a low-cost microcontroller according to claim 1, characterized by using an automatic volume regulator to offset the change of the values of the signal caused by the wear of the batteries in portable apparatuses.
4.- A signal recognition method with a low-cost microcontroller according to claim 1, characterized in that it uses a method for the relative comparison weighting of the measurement parameters based on fuzzy logic principles to increase the hit index.
5.- A signal recognition method with a low-cost microcontroller according to claim 1, characterized in that it uses the time analysis of a signal by means of a microcontroller with very low memory capacity.
6.- A signal recognition method with a low-cost microcontroller according to claim 1, characterized in that it uses an automatic level control of the input signal so that the result of the analysis is virtually independent of the sound capture distance.
7.- A signal recognition method with a low-cost microcontroller according to claim 1, characterized by using a high-speed signal characterization method allowing a very simple and high-speed identification algorithm in order to display the result in real-time.
CA002620200A 2005-09-07 2005-09-07 Signal recognition method using a low-cost microcontroller Abandoned CA2620200A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES2005/000484 WO2007028836A1 (en) 2005-09-07 2005-09-07 Signal recognition method using a low-cost microcontroller

Publications (1)

Publication Number Publication Date
CA2620200A1 true CA2620200A1 (en) 2007-03-15

Family

ID=37835396

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002620200A Abandoned CA2620200A1 (en) 2005-09-07 2005-09-07 Signal recognition method using a low-cost microcontroller

Country Status (11)

Country Link
US (1) US20080284409A1 (en)
EP (1) EP1950736B1 (en)
JP (1) JP4931927B2 (en)
AT (1) ATE488002T1 (en)
AU (1) AU2005336269A1 (en)
BR (1) BRPI0520529A2 (en)
CA (1) CA2620200A1 (en)
DE (1) DE602005024724D1 (en)
ES (1) ES2354702T3 (en)
MX (1) MX2008002313A (en)
WO (1) WO2007028836A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8321209B2 (en) 2009-11-10 2012-11-27 Research In Motion Limited System and method for low overhead frequency domain voice authentication
EP2337023B1 (en) * 2009-11-10 2012-01-04 Research in Motion Limited System and method for low overhead voice authentication
US8775191B1 (en) * 2013-11-13 2014-07-08 Google Inc. Efficient utterance-specific endpointer triggering for always-on hotwording
GB2552067A (en) 2016-05-24 2018-01-10 Graco Children's Products Inc Systems and methods for autonomously soothing babies

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4066844A (en) * 1975-11-13 1978-01-03 Communications Satellite Corporation Adaptable zero order predictor for speech predictive encoding communications systems
US4181813A (en) * 1978-05-08 1980-01-01 John Marley System and method for speech recognition
US4627091A (en) * 1983-04-01 1986-12-02 Rca Corporation Low-energy-content voice detection apparatus
GB2145864B (en) * 1983-09-01 1987-09-03 King Reginald Alfred Voice recognition
US4827519A (en) * 1985-09-19 1989-05-02 Ricoh Company, Ltd. Voice recognition system using voice power patterns
US5150415A (en) * 1989-05-01 1992-09-22 Motorola, Inc. Volume control circuit using pulse modulation
WO1991019989A1 (en) * 1990-06-21 1991-12-26 Reynolds Software, Inc. Method and apparatus for wave analysis and event recognition
JPH06222792A (en) * 1993-01-21 1994-08-12 Fuji Xerox Co Ltd Audio processor
US5640490A (en) * 1994-11-14 1997-06-17 Fonix Corporation User independent, real-time speech recognition system and method
US6044343A (en) * 1997-06-27 2000-03-28 Advanced Micro Devices, Inc. Adaptive speech recognition with selective input data to a speech classifier
US6347297B1 (en) * 1998-10-05 2002-02-12 Legerity, Inc. Matrix quantization with vector quantization error compensation and neural network postprocessing for robust speech recognition
DE19859174C1 (en) * 1998-12-21 2000-05-04 Max Planck Gesellschaft Method of signal processing a noisy acoustic signal determining the correlation between signal profiles using non linear noise reduction in deterministic systems
US7653002B2 (en) * 1998-12-24 2010-01-26 Verizon Business Global Llc Real time monitoring of perceived quality of packet voice transmission
US6321194B1 (en) * 1999-04-27 2001-11-20 Brooktrout Technology, Inc. Voice detection in audio signals
FI19992351A (en) * 1999-10-29 2001-04-30 Nokia Mobile Phones Ltd voice recognizer
FR2805433A1 (en) * 2000-02-17 2001-08-24 France Telecom SIGNAL COMPARISON METHOD AND DEVICE FOR TRANSDUCER CONTROL AND TRANSDUCER CONTROL SYSTEM
DE10043160B4 (en) * 2000-09-01 2009-11-26 Infineon Technologies Ag A sound signal detection circuit and method for detecting sound signals
JP2003280682A (en) * 2002-03-20 2003-10-02 Toyota Motor Corp Voice recognition device and method therefor
US6947869B2 (en) * 2002-03-29 2005-09-20 The United States Of America As Represented By The Secretary Of The Navy Efficient near neighbor search (ENN-search) method for high dimensional data sets with noise
JP4348970B2 (en) * 2003-03-06 2009-10-21 ソニー株式会社 Information detection apparatus and method, and program
US7529670B1 (en) * 2005-05-16 2009-05-05 Avaya Inc. Automatic speech recognition system for people with speech-affecting disabilities
US7536304B2 (en) * 2005-05-27 2009-05-19 Porticus, Inc. Method and system for bio-metric voice print authentication

Also Published As

Publication number Publication date
BRPI0520529A2 (en) 2009-09-29
AU2005336269A1 (en) 2007-03-15
JP4931927B2 (en) 2012-05-16
EP1950736A1 (en) 2008-07-30
EP1950736B1 (en) 2010-11-10
DE602005024724D1 (en) 2010-12-23
ATE488002T1 (en) 2010-11-15
JP2009507260A (en) 2009-02-19
WO2007028836A1 (en) 2007-03-15
ES2354702T3 (en) 2011-03-17
US20080284409A1 (en) 2008-11-20
MX2008002313A (en) 2008-04-22

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued

Effective date: 20150320